3238 This question's answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. How do I concatenate two lists in …

Apr 4, 2009 · Closed 9 years ago. Is the a short syntax for joining a list of lists into a single list ( or iterator) in python? For example I have a list as follows and I want to iterate over a,b and c.

Sep 17, 2012 · For handling a few strings in separate variables, see How do I append one string to another in Python?. For the opposite process - creating a list from a string - see How do I …

In Python, the only way I can find to concatenate two lists is list.extend, which modifies the first list. Is there any concatenation function that returns its result without modifying its arguments?

Oct 24, 2013 · How to concatenate element-wise two lists in Python [duplicate] Asked 12 years, 1 month ago Modified 4 years, 3 months ago Viewed 87k times

Ok there is a file which has different words in 'em. I have done s = [word] to put each word of the file in list. But it creates separate lists (print s returns ['it]'] ['was'] ['annoying']) as I mentioned …

Mar 15, 2015 · The point of this code is in concatenating whole lists by list.extend where list comprehension would add one item by one, as if calling list.append. That saves a bit of …

I know you can concatenate using the + operator (as in x = list1 + list2 + list3)but how do you do this using a simple list comprehension? There is a similar question here: Concatenate 3 lists of …

What would be your preferred way to concatenate strings from a sequence such that between every two consecutive pairs a comma is added. That is, how do you map, for instance, ['a', 'b', …

I have a list of Pandas dataframes that I would like to combine into one Pandas dataframe. I am using Python 2.7.10 and Pandas 0.16.2 I created the list of dataframes from: import pandas as …